| Coordinators: Albert de Jong
 Leon Kelder
 Roland-Jan Buijs
 Thijs Horst
 Merijn Loeve
 Mars Muusse
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 Lelystad 2023:   |  Caspian Gull cachinnans 4.4 2CY, March-July 2024, Wervershoof - Vooroever, the Netherlands. Picture: Jeroen van Assema.Red  tibia  ring r[4.4] and metal NLA 5.629.605, ringed as pullus Larus cachinnans on April 29 2023 at De Kreupel, Holland (5247.00 N 513.00 E) - ringer Leon Kelder. Recoveries:12-05-2023 IJsselmeer (De Kreupel), Noord-Holland, NL 5.247,00 N 513,00 E captured by ringer Leon Kelder
 04-01-2024 Almere (De Vaart), Flevoland, NL 5.224,00 N 514,00 E colourring read Jan Zorgdrager & Eric Roeland
 05-01-2024 Almere (De Vaart), Flevoland, NL 5.224,00 N 514,00 E colourring read Eric Roeland
 05-03-2024 Wervershoof (Vooroever), Noord-Holland, NL 5.245,00 N 507,00 E colourring read Leon Kelder
 09-03-2024 Wervershoof (Vooroever), Noord-Holland, NL 5.245,00 N 507,00 E colourring read Jeroen van Assema
 28-07-2024 IJsselmeer (De Kreupel), Noord-Holland, NL 5.247,00 N 513,00 E colourring read T. Horst & M. Muusse
 30-07-2024 IJsselmeer (De Kreupel), Noord-Holland, NL 5.247,00 N 513,00 E colourring read J. van Assema & T. Horst
 below: Caspian Gull cachinnans 4.4 2CY, July 30 2024, colony De Kreupel, the Netherlands.  Picture: Thijs Horst.
 below: Caspian Gull cachinnans 4.4 2CY, July 28 2024, colony De Kreupel, the Netherlands.  Picture: Thijs Horst & Mars Muusse.
 
 
 
 below: Caspian Gull cachinnans 4.4 2CY, March 09 2024, Wervershoof - Vooroever, the Netherlands. Picture: Jeroen van Assema.
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